EP 0166855 B1 19880608 - BUTTERFLY VALVE FOR AGGRESSIVE FLUIDS
Title (en)
BUTTERFLY VALVE FOR AGGRESSIVE FLUIDS
Publication
Application
Priority
DE 3424924 A 19840706
Abstract (en)
[origin: US4580593A] The invention relates to a disk valve for corrosive fluids comprising a tubular metal housing lined with a hard-elastic, unpadded coating and a throttle disk with a hard-sealing, unpadded covering being made up of hard synthetic resin and being of a minimum thickness of three millimeters. The throttle disk is attached to two pivot pins extending through said coating and said metal housing and the throttle disk is sealing said metal housing in a transverse plane comprising the axis of said pivot pins. The pivot pins are directly enclosed by separate, hard-elastic sealing bushes seating on the covered throttle disk and being separately adjustable. In order to provide a disk valve which can be applied for a large temperature range and which has no leakages at the sealing bushes as well, the sealing bushes are respectively pressed with wedge-shaped front ends into V-shaped annular grooves of the disk covering.
IPC 1-7
IPC 8 full level
F16K 1/226 (2006.01); F16K 27/02 (2006.01); F16K 41/04 (2006.01)
CPC (source: EP US)
F16K 1/2268 (2013.01 - EP US); F16K 27/0218 (2013.01 - EP US); Y10T 137/7036 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0166855 A2 19860108; EP 0166855 A3 19860903; EP 0166855 B1 19880608; AT E35035 T1 19880615; DE 3424924 A1 19860206; DE 3563256 D1 19880714; US 4580593 A 19860408
DOCDB simple family (application)
EP 85102036 A 19850223; AT 85102036 T 19850223; DE 3424924 A 19840706; DE 3563256 T 19850223; US 75258985 A 19850708